December Weather in Roja, Latvia

Last updated: August 23, 2025

In December, the average temperature in Roja, Latvia hovers around 1°C (35°F). Expect minimum lows of -9°C (17°F) and maximum highs of 9°C (48°F). Rainfall is moderate, with 56 mm (2.2 in) expected over approximately 14 days, contributing to a notably high average humidity of 93%.

December Temperature in Roja

In December in Roja, the average temperature is 1°C (35°F). The maximum can reach 9°C (48°F), while the minimum can drop as low as -9°C (17°F). It's essential to pack warm clothing and be prepared for chilly weather if you're planning to travel during this time.

December Weather in Roja: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Roja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roja, December typically has an average temperature of 1°C (35°F), with highs reaching up to 9°C (48°F) and lows dropping to around -9°C (17°F).

Data source: Temperature data for Roja generated using information from the Copernicus Climate Change Service.

December Precipitation in Roja

In Roja in December, the precipitation amount is 56 mm (2.2 in) over a span of 14 days.

December Precipitation Trends in Roja

The chart displays monthly precipitation patterns in Roja, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Roja, December typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Roja

In Roja in December, humidity is 93%. With an average temperature of 1°C (35°F), this humidity feels like an oppressive chill that clings to your skin, making every step feel heavier as you navigate through the thick, damp air.

December Average Humidity in Roja

This chart illustrates the average monthly humidity levels in Roja, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Roja is approximately 93%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Roja

In Roja in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Roja.

Maximum UV Index Levels in Roja for December

The chart shows the monthly maximum UV Index (UVI) for Roja in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Roja typically reaches 1, which falls under the low exposure category.

Data source: Roja December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Roja Compares to Other Months

Weather in Roja varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Roja, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Roja, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	43 mm (1.7 inches)	93%	low
February Weather	0°C (31°F)	41 mm (1.6 inches)	91%	low
March Weather	1°C (35°F)	48 mm (1.9 inches)	90%	moderate
April Weather	5°C (41°F)	36 mm (1.4 inches)	87%	moderate
May Weather	10°C (50°F)	42 mm (1.7 inches)	72%	high
June Weather	16°C (61°F)	54 mm (2.1 inches)	76%	high
July Weather	18°C (65°F)	76 mm (3.0 inches)	76%	high
August Weather	18°C (64°F)	87 mm (3.4 inches)	80%	high
September Weather	14°C (58°F)	79 mm (3.1 inches)	87%	moderate
October Weather	10°C (50°F)	91 mm (3.6 inches)	91%	low
November Weather	6°C (42°F)	75 mm (3.0 inches)	92%	low
December Weather	1°C (35°F)	56 mm (2.2 inches)	93%	low